The additional information needed to calculate ORS are the measures of SPR and PSR
<h3>The special names of the lines</h3>
The lines are given as:
Lines a, b, c and d
The special names of the lines are as follows:
- Line a: A secant. This is because the line divides the circle into unequal segments
- Line b: A tangent: This is because the line touches the circle at a point on the circumference
- Line c: A diameter. This is because the line divides the circle into equal segments
- Line d: A secant. This is because the line divides the circle into unequal segments
<h3>The additional information needed</h3>
The angle is given as:
OPS= 139 degrees
Start by calculating SPR using
SPR = 180- 139
SPR = 41 degrees
So, the additional information needed to calculate ORS are the measures of SPR and PSR
<h3>How to calculate the lengths RO, RS, RV, and RT</h3>
The theorem 65 is not stated.
So, the question cannot be answered
Read more about circle theorems at:
brainly.com/question/19906313
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